Weak vs. strong breaking of integrability in interacting scalar quantum field theories

The recently proposed classification of integrability-breaking perturbations according to their strength is studied in the context of quantum field theories. Using random matrix methods to diagnose the resulting quantum chaotic behaviour, we investigate the $\phi^4$ and $\phi^6$ interactions of a ma...

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Bibliographic Details
Main Author: Bence Fitos, Gábor Takács
Format: Article
Language:English
Published: SciPost 2023-10-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.15.4.137